Home / 1,187,112.36-1,780,652.70-288,551.64

Finding the Fourth Proportional to 1,187,112.36, 1,780,652.70 and 288,551.64

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Solution

The fourth proportional to 1,187,112.36, 1,780,652.70 and 288,551.64 is: 432,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,112.36 : 1,780,652.70 = 288,551.64 : x
  2. Step 2: Convert to fraction form
    1,187,112.36/1,780,652.70 = 288,551.64/x
  3. Step 3: Cross multiply
    1,187,112.36x = 1,780,652.70 × 288,551.64
  4. Step 4: Simplify right side
    1,187,112.36x = 513,810,256,855.43
  5. Step 5: Solve for x
    x = 513,810,256,855.43/1,187,112.36
  6. Step 6: Final answer
    x = 432,823.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.